Comparison

SimpleSigma vs GroupCollect

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

SimpleSigma

This app offers a versatile calculator with three distinct table types for various needs, from simple sums to complex quantity-based calculations. It features intuitive input, auto-saving, and CSV export. An optional Pro version removes ads, unlocks unlimited tables, and adds advanced statistics and OCR receipt scanning.

Highlights
  • Three distinct table types (Simple, Duplex, Shopping)
  • Auto-totaling and quick sum calculations
  • Swipe keyboard for cell navigation
  • CSV data export
  • Auto-save functionality
  • Optional Pro version with advanced features
Features
Read full description

β–  About SimpleSigma A simple and powerful calculator app for everyday use. From shopping calculations to business tallies, SimpleSigma handles it all. Choose from 3 table types to match your needs. β–  Key Features Simple Table - Extremely simple input - Auto-totaling as you type - Quick sum calculation - Perfect for receipt scanning (Pro - Beta) Duplex Table - Multiply two values automatically - Great for area or unit price calculations - Subtotal display Shopping Table - Price x Quantity = automatic calculation - Custom tax rates - Subtotals at a glance Common Features for All Tables - Swipe keyboard up/down/left/right to move between cells - CSV export - Auto-save β–  Pro Version Benefits Upgrade to SimpleSigma Pro for more power: No Ads Work distraction-free Unlimited Tables Create as many tables as you need (Free: 3 max) Advanced Statistics - Period-based totals (Today, Week, Month, Year) - Daily trend charts - Type breakdown pie charts - Total, Average, Max, Min at a glance - CSV export AppleWatch supported - Simple Table, Sharing with iPhone Receipt OCR (Beta) - Scan receipts with camera - Auto-recognize total amounts - Best suited for Simple Table - Save time on manual entry Starting at $2.99/month Save more with yearly plan! β–  Perfect For - Quick shopping calculations - Business expense tracking - Visualizing spending patterns - Managing multiple projects separately - Ad-free focus β–  Highlights - Extremely simple input design - Swipe keyboard (up/down/left/right) for fast cell navigation - Native iOS interface - Auto-save results - CSV export for data portability - Japanese & English support β–  Free Version Includes - All 3 table types - Up to 3 tables - Core calculation features - Keyboard swipe navigation - CSV export β–  Privacy - All data stored locally on device - No external server uploads - Secure iOS backup β–  Support Questions or feedback? Contact us: applicast3@gmail.com Make calculations smarter with SimpleSigma. Download now and try Pro for full features! Terms of Service: https://gist.github.com/zekoo2026/892cbcbb08ec7a1ce6e54e370acf2b51 Privacy Policy: https://gist.github.com/zekoo2026/12756689700e4afa4c9295cc4e0ba244

About

GroupCollect

Simplify group payment collection by tracking who owes what and sending reminders. Ideal for managing shared expenses for events, trips, or club dues.

Highlights
  • Manage member lists
  • Track individual payment amounts
  • Send automated reminders
  • View payment status at a glance
  • Organize group expenses
Features
Read full description

As the organizer or treasurer, easily handle the toughest parts of collecting money from a group: the member list, individual payment amounts, and reminder messages! Ever covered the bill at a party, heard β€œI’ll pay you back later,” and then lost track of who actually paid you? We’ve all been there. Introducing β€œShukinkun” (literally β€œMoney Collector” in Japanese) – the ultra-handy app that shows at a glance who has paid! Whether you’re splitting costs on a night out, settling up after a group trip, or collecting club dues, this app does it all. With Shukinkun, managing group payments becomes a breeze. Start your smooth, stress-free payment collection life today!

Screenshots

SimpleSigma4 screens
GroupCollect4 screens

Verdict

The call

The clearest difference is review sentiment: GroupCollect at 88% against SimpleSigma's 67%. GroupCollect also leads on update cadence (fortnightly vs every 6 weeks) and iOS requirement (13.0 vs 26.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. SimpleSigma sells 2 in-app purchases, starting at $2.99 per month and GroupCollect sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SimpleSigma ships an update every 6 weeks, GroupCollect fortnightly. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

Scorecard3 real differences Β· 5 level
SimpleSigma versus GroupCollect: the parameters behind the verdict, then further details
ParameterSimpleSigmaGroupCollect
PriceFreeFree
Positive reviews66.7% of reviews87.5% of reviews β€” better
Update frequencyEvery 6 weeksFortnightly β€” better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS26.013.0 β€” better
Further details β€” not scored
Size7 MB99 MB
Age rating4+4+
DeveloperMUTSUAKI KIKUCHIYUMA IKEO

Customer experience

SimpleSigma

Written reviews9 reviews
Positive66.7%
Neutral11.1%
Negative22.2%

GroupCollect

Written reviews8 reviews
Positive87.5%
Neutral12.5%
Negative0.0%

In-app purchases

2 purchases

SimpleSigma

Subscriptions2
  • SimpleSigma Pro (Monthly)$2.991 Month
  • SimpleSigma Pro (Yearly)$29.991 Year
4 purchases

GroupCollect

One-time4
  • コーヒーチップ(S)$0.99
  • εΊƒε‘Šε‰Šι™€$2.99
  • コーヒーチップ(M)$2.99
Show 1 more
  • コーヒーチップ(L)$6.99

Questions

Is SimpleSigma free?
SimpleSigma is free to download, with in-app purchases available.
Is GroupCollect free?
GroupCollect is free to download, with in-app purchases available.
Do SimpleSigma or GroupCollect have ads?
Both SimpleSigma and GroupCollect show ads.
Which is updated more often, SimpleSigma or GroupCollect?
SimpleSigma ships an update every 6 weeks, and GroupCollect fortnightly. Most recently, SimpleSigma was updated on October 7, 2026 and GroupCollect on October 5, 2026.

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